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WITCHER [35]
3 years ago
11

When their report cards came back, Pete, Chris, and Dina realized that they shared the number of A’s in the ratio 4:2:5. If Pete

got 14 more A’s than Chris, how many A’s did Dina get?
Mathematics
1 answer:
ankoles [38]3 years ago
6 0
15 I believe.. I could be wrong bc idk if youre adding the A's to the ratio or starting at 0
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Biff hit homeruns every year he played. Four times he hit 12, twice he hit 15 and other years Biff hit 6, 11, 19, and 20 homerun
Nikolay [14]

Answer:12 is the mean

Step-by-step explanation: Just find the middle number

7 0
3 years ago
Find the values of the three missing values in the parallelogram the diagram is not to scale
Nat2105 [25]
1 = 113°
2 = 45°
3 = 22°
8 0
3 years ago
OAA', OBB', and OCC' are straight lines. Triangle ABC is mapped onto Triangle A'B'C' by an enlargement with center O. What is th
bazaltina [42]

Answer:

(D) 2

Step-by-step explanation:

The scale factor of the enlargement of ΔABC to ΔA'B'C' is given by the ratio of the length of the corresponding sides of ΔA'B'C' and ΔABC

Therefore, we have;

The \ scale \ factor = \dfrac{Length \ of \overline  {B'C'}}{Length \ of \overline {BC}} =  \dfrac{Length \ of \overline  {A'C'}}{Length \ of \overline {AC}} =  \dfrac{Length \ of \overline  {A'B'}}{Length \ of \overline {AB}}

\dfrac{Length \ of \overline  {B'C'}}{Length \ of \overline {BC}} =  \dfrac{2 \ units}{1 \ unit} = 2

\dfrac{Length \ of \overline  {A'C'}}{Length \ of \overline {AC}} =  \dfrac{4 \ units}{2 \ units} = 2

\dfrac{Length \ of \overline  {A'B'}}{Length \ of \overline {AB}} =  \dfrac{2 \cdot \sqrt{5}  \ units}{\sqrt{5}  \ units} = 2

Therefore, the scale factor = 2

6 0
2 years ago
Help me with these two problems? (attatched below)
Inessa [10]
You are given an annual interest rate of 4.2% compounded monthly for 20 years, mortgage amount of $235,000. You are asked to find the monthly payment. You need the compound interest formula to solve this problem. The answer is $1,449.
4 0
3 years ago
A delivery truck drove 203 mi in 3.5 h. After unloading and loading new cargo, it traveled on another 243 mi for 4.5 h. What was
Firdavs [7]
The average speed of the truck is calculated by dividing the total distance traveled in a span of the total time given. From the given above, the total distance traveled is
                       total distance = 203 mi + 243 mi = 446 mi
and the total time it took for the whole trip is
                       total time = 3.5 h + 4.5 h = 8 h
The average speed is therefore,
                       average speed = 446 mi/8 h = 55.75 mi/h
Thus, the answer is letter A. 
7 0
2 years ago
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